A granny flat adds independent living space for family — or a rental income stream — in your own backyard. Compare verified granny flat and secondary-dwelling builders below, or get free quotes.
Tiny Homes 4U are your leading business when it comes to modern small living spaces. We have a range of options that may suit your needs from granny flats, studios, home offices and more. Please contact our sales team for more information
GRANNY FLAT BUILDER - Let us Design, Approve and Build your next granny flat !
We specialise in delivering high-quality residential and commercial construction services across the South Coast and the Southern Highlands. With decades of experience, our team is committed to bringing your vision to life, whether you’re building a new home, renovating or expanding your business space. Trust us for reliable, innovative and cost effective construction solutions. Specializing in home renovations, bathroom renovations, extensions, decks, pergolas, carports, kitchen remodels, roofing, concrete driveways, granny flats and new builds. Highly rated. Visit our website for a quote today.
Paramount Planning & Construction is an Australian-owned and operated construction company, built on a solid foundation of strong values on top of our 20 years’ industry experience. We specialise in Granny Flats, Home Extensions & Renovations & New Homes.
We’re a local business with decades of building and construction experience and have delivered these solutions to dozens of very happy clients. Our local team specialise in constructing top-quality Granny Flats that cater to various needs, from enhancing your investment portfolio by making a property more functional, to providing a comfortable living space for loved ones in a short-stock housing market. Built on-site with superior materials and craftsmanship, our Granny Flats are built to an agreed up-front price and schedule. We even guarantee it! Our experts ensure you get an affordable, functional, and stylish Granny Flat, and make it easy. 99% of our builds have not required council approval! We’re always keen to hear from you.
We are a family-owned residential building company specialising in custom homes, renovations/extensions, and granny flats. We prioritise open communication and timely project delivery to ensure a seamless, stress-free building experience for our clients.
Transform your property with our custom log cabins, tiny homes, and granny flats. Based in Brisbane and with over a decade of experience, we specialise in high-quality, affordable, and eco-friendly small homes. Our family-owned business is dedicated to delivering exceptional workmanship on time and within budget. Perfect for creating dream spaces like she sheds and man caves or adding value to your property. Contact us today to explore our innovative housing solutions in Southeast Queensland.
BWR Building is your local residential construction experts. We are a trusted team of skilled carpenters and builders proudly servicing the Northern Rivers NSW areas including Alstonville, Wollongbar, Ballina. We offer all carpentry and building services, specialising in new homes, granny flats, renovations, decks, and home improvements. With over 18 years of experience in the local building industry, we guarantee a smooth process from design to completion. We take pride in our exceptional craftsmanship and outstanding customer service across all projects. Our mission is to work with you to turn your dream into a reality, enhancing your home’s value.
We are a family business located in Melbourne Victoria with 15 years experience and pride ourselves in providing our customers with the best quality of work. We specialise in Bathroom Renovations, Home Renovation, General Building Work, Granny Flats, Home Extensions, New Homes, Units, Carpenters, Architraves, Decking, House Frames, Skirting, Doors,Garages, Ground Floor Extensions, 2nd Storey Additions, Patios, Pergolas, Custom Design, Construction, and many more. Call us for a free quote.
Coastline Building is your trusted Central Coast custom home builder, proudly family-owned and operated in NSW. With over 25 years of experience, we specialise in new custom home builds, home renovations, extensions, granny flats, and all aspects of carpentry. Led by John, a fully licensed and experienced builder, we deliver high-quality, reliable building services that Central Coast residents can count on. We work closely with you at every stage — from planning to completion — to ensure a smooth, stress-free building experience. Whether you’re planning a new home, renovation, or extension, contact us today to see how Coastline Building can bring your vision to life.
Magna Building Group is a trusted residential building company in Western Australia, specialising in high-quality home extensions, renovations, granny flats, insurance repairs, property maintenance, and new home builds. With a commitment to craftsmanship, clear communication, and reliable project delivery, we help homeowners bring their vision to life—on time and on budget. Whether you’re expanding your living space, upgrading your home, or starting fresh, Magna Building Group offers a seamless building experience from concept to completion.
We Design and Build custom new homes, our signature 'W collection' high-end homes through Wilson Design and Build. We also build granny flats, duplex and townouse investments (through Builders Brisbane) all through Logan, Redlands, Brisbane, Ipswich and the Gold Coast. Oh, and we now also service select areas of the Northside too!
Vivo Homes is a leading Sydney-based design & construct building company specialising in custom homes, duplexes, premium granny flats, second homes, and high-quality renovations. We help families and investors unlock hidden opportunities in their property for multigenerational living, additional income, or maximising land value. With a focus on quality, communication, and client care, we manage the entire journey … design, approvals, construction, and handover. Every project is delivered with meticulous attention to detail and long-term value. Whether building for multigenerational living, creating an additional income stream, or designing your forever home, Vivo Homes turns your vision into a reality with integrity, experience, and heart.
Emu Residential is your go-to local carpentry business in the Port Stephens area. We specialise in new homes, renovations, extensions, granny flats, and more. Whether you’re building from the ground up or renovating your space, we’ve got you covered. Operating in Nelson Bay, Shoal Bay, Salamander Bay, the Newcastle area, and more, we pride ourselves on quality craftsmanship and delivering results that make your vision come to life.
Hurst Constructions specialises in building home extensions, second storey additions, granny flats and all renovations including kitchen and bathrooms. Our small but professional team will handle all plan design, approvals, fixed price contracts, and building completion. Call today for your free consultation about your design and budget.
DK Development Group Pty Ltd is a licensed NSW building company specialising in custom homes, duplexes, townhouses, granny flats and high-quality renovations. We also complete unit and apartment refurbishments designed to increase rental returns or boost sale value across Drummoyne, Chiswick, Putney and surrounding suburbs. We provide a personalised building experience and take the time to walk clients through every stage of the project. Whether you’re upgrading an investment property or building your dream home, we work with all budgets and deliver practical, high-quality solutions. Our team is committed to clear communication, reliable service and strong workmanship on every project. We would love the opportunity to work with you.
Granny Flats Sydney builds Granny Flats throughout Sydney. Beautiful designs, fast approvals and quality construction mean realising your granny flat project in perfect terms. Granny Flats Sydney love building exciting and functional granny flats for investors and families. Come check out our Granny Flats Display Village in Panania, near the M5 Motorway today!
Coastwide Granny Flats specialise in the design, approval and construction of high quality granny flats across the Central Coast. With over 35 years of combined residential building experience, we manage the entire process from site assessment and design through to CDC or council approval and full construction. Visit our display centre in East Gosford to walk through real builds and explore finishes. Choose from proven 60sqm designs or create a custom solution tailored to your block, budget and long term investment or family goals.
At Eastcoast Custom Granny Flats, we believe that building a high quality granny flat should be a smooth experience. Over 20 years of building experience, our team of dedicated professionals is committed to providing you with personalised granny flats.
Alcona Building are a proudly Australian owned & operated business. The company has a combined industry experience of 20 Years with a focus on delivering on expectation. Alcona is a family business specialising in Luxury New Homes, Renovations /Extensions, Granny Flats Restoration works, Insurance & Emergency repair work in all Residential, Health, Commercial, Educational, Retail and Real-estate sectors.
Manhattan Custom Homes is the Sydney's most trusted home builder for over 15 years. We believe in providing exceptional customer service throughout the entire building process with our experienced architectural and construction team. We are located in Box Hill, northwest of Sydney. We specialize in single storey homes, double storey homes, duplex, granny flats, knock-down rebuilds, and complete custom home designing and building. With more than a decade of experience, PJ and Khushdeep have a mission to build quality homes that exceed our clients' expectations from concept to handover. Contact us if you're looking for the best custom home builders in Sydney who will turn your dream house into a reality.
Whether you want an extra dwelling to give your teenager some space, or for an elderly relative to stay to keep close, we have a range of designs for different needs, not only are our Backyard Abodes great for making extra space, but they are also beneficial as a rental income or to add value to your property. We are a family-owned and operated business who, for many years, has been designing and building contemporary granny flats throughout Northern NSW so no matter what you want a second dwelling for, we are your trusted and professional choice of builders.
New home builder servicing the Central Coast, Newcastle and surrounding areas. We build houses, granny flats and duplexes. Pick from our standard designs or let us create something special for you.
Renovations, Extensions, Decks & granny flats. We are a family business that has been Building and renovating homes across the world for over 150 years, this year we celebrate 20 years in business in Queensland. We have worked on some the largest homes to some of the smallest extensions and are specialists in helping you convert your existing house into your perfect home. If you love where you live but need more space we can look at options for you to add that extra space, which can consist of adding an extra floor, building an extension or granny flat. Contact us today for your free quote.
Showing builders who advertise granny flat builder work, ranked by rating.
A quality one- or two-bedroom granny flat typically costs around $120,000–$200,000+ turnkey, depending on size, spec, site works and service connections. Prefab/modular options can come in lower; difficult sites and high-end finishes push it higher.
Rules differ by state: NSW allows granny flats up to 60m² as complying development on most residential blocks, and several other states have streamlined secondary-dwelling pathways — but block size, setbacks and services still apply. A granny flat builder will know your council's rules and usually handles approval.
In most states yes — NSW, WA, NT, ACT and Tasmania broadly allow it, while some states have historically restricted rental to family members, and rules have been loosening. Check your state's current position; rental yield is the reason granny flats often stack up as an investment.